544253321 has 4 divisors (see below), whose sum is σ = 544666644. Its totient is φ = 543840000.

The previous prime is 544253287. The next prime is 544253363. The reversal of 544253321 is 123352445.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 519612025 + 24641296 = 22795^2 + 4964^2 .

It is a cyclic number.

It is not a de Polignac number, because 544253321 - 2²² = 540059017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544253371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204680 + ... + 207321.

It is an arithmetic number, because the mean of its divisors is an integer number (136166661).

Almost surely, 2^544253321 is an apocalyptic number.

It is an amenable number.

544253321 is a deficient number, since it is larger than the sum of its proper divisors (413323).

544253321 is a wasteful number, since it uses less digits than its factorization.

544253321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413322.

The product of its digits is 14400, while the sum is 29.

The square root of 544253321 is about 23329.2374714649. The cubic root of 544253321 is about 816.4577126016.

The spelling of 544253321 in words is "five hundred forty-four million, two hundred fifty-three thousand, three hundred twenty-one".